BMR Energy Meters
| Device Type | Modbus TCP (Ethernet) | RS485 |
|---|---|---|
| PLA33 | ✅ | ✅ |
| PLA33RX |
Figure 1: Front panel of the PLA33 showing buttons like SET, cursor keys, and ESC.
Figure 2: Front panel of the PLA33RX showing buttons like ESC, cursor keys, and status LEDs for recording and relay outputs.
For RS485 wiring, follow the .
| Device | SmartgridOne Controller model OM1 | SmartgridOne Controller model IG8 | RS485-USB converter | RS485-Ethernet converter |
|---|---|---|---|---|
| A | RS485 A | RS485_POS | RS485 A | TX+ |
| B | RS485 B | RS485_NEG | RS485 B | TX- |
| GND | RS GND | GND | Not available | G |
For Ethernet wiring, follow the .
To configure RS485 communication on BMR energy meters, follow these steps:
Set the Modbus Address:
P_2) using the cursor keys.Set the Baud Rate:
P_2), configure the bd (baud rate) to match your system. Supported baud rates include 9.6 / 19.2 / 38.4 / 57.6 / 115 kBd.Parity and Stop Bits:
None, Odd, or Even.1 or 2 as needed.RS485 Termination:
For devices with Ethernet capability: